{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:GCMZCEBNJSMV5U4YYR4Z3YOQOD","short_pith_number":"pith:GCMZCEBN","canonical_record":{"source":{"id":"1312.7015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-12-25T20:17:31Z","cross_cats_sorted":[],"title_canon_sha256":"b255aebc58b9cff96fac0ced246b5fe413e0f4177cc93d6573ccfc3847600d51","abstract_canon_sha256":"ed57d26a503a13c02917d57a16fa89f0a094972b04911bb9b828dbde719c4549"},"schema_version":"1.0"},"canonical_sha256":"309991102d4c995ed398c4799de1d070cf65bf2cb8ee11e61337ca7f3c9fc890","source":{"kind":"arxiv","id":"1312.7015","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7015","created_at":"2026-05-18T00:56:47Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7015v2","created_at":"2026-05-18T00:56:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7015","created_at":"2026-05-18T00:56:47Z"},{"alias_kind":"pith_short_12","alias_value":"GCMZCEBNJSMV","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GCMZCEBNJSMV5U4Y","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GCMZCEBN","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:GCMZCEBNJSMV5U4YYR4Z3YOQOD","target":"record","payload":{"canonical_record":{"source":{"id":"1312.7015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-12-25T20:17:31Z","cross_cats_sorted":[],"title_canon_sha256":"b255aebc58b9cff96fac0ced246b5fe413e0f4177cc93d6573ccfc3847600d51","abstract_canon_sha256":"ed57d26a503a13c02917d57a16fa89f0a094972b04911bb9b828dbde719c4549"},"schema_version":"1.0"},"canonical_sha256":"309991102d4c995ed398c4799de1d070cf65bf2cb8ee11e61337ca7f3c9fc890","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:56:47.019195Z","signature_b64":"2hzI9U/bj8R7NEDxhpPW+n4hjwZNTST4V8Z0RZBinkJE5pmmY2WVBBqjESDJazoNHhIlmovCZExOoNBTQs5tCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"309991102d4c995ed398c4799de1d070cf65bf2cb8ee11e61337ca7f3c9fc890","last_reissued_at":"2026-05-18T00:56:47.018536Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:56:47.018536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.7015","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:56:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1QfQs4D4bkHkhHSoPbDvvETzDshsqw6l3FYMlmaUz3/jnpRxCYTVe8S6Mv6eqQMsKLVR0IFLhlYGWo6CZogbDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:24:26.591236Z"},"content_sha256":"962abc0363a3a1122a7365dbb72d33036f4cd813690953e5739bef9e6797bdf4","schema_version":"1.0","event_id":"sha256:962abc0363a3a1122a7365dbb72d33036f4cd813690953e5739bef9e6797bdf4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:GCMZCEBNJSMV5U4YYR4Z3YOQOD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ambipolar Transport and Magneto-resistance Crossover in a Mott Insulator, Sr$_{2}$IrO$_{4}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"C. R. Serrao, D. K. Efetov, D. Yi, J. Ravichandran, P. Kim, R. Ramesh, S.-W.Cheong, Y. S. Oh","submitted_at":"2013-12-25T20:17:31Z","abstract_excerpt":"Electric field effect (EFE) controlled magnetoelectric transport in thin films of undoped and La-doped Sr$_{2}$IrO$_{4}$ (SIO) were investigated under the action of ionic liquid gating. Despite large carrier density modulation, the temperature dependent resistance measurements exhibit insulating behavior in chemically and EFE doped samples with the band filling up to 10\\%. The ambipolar transport across the Mott gap is demonstrated by EFE tuning of the activation energy. Further, we observe a crossover from a negative magnetoresistance (MR) at high temperatures to positive MR at low temperatur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7015","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:56:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OBJcLyftghON3Hm3v2PkHR3tm2+epaywxzR47UphE9LsP/szRyGpaFiAjdDrTcjkrYar0FsWypJiR1Kq9PCZBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:24:26.591900Z"},"content_sha256":"2312934d22a2e9b86ec486424b5c1d8ce2f531600726bbb705b1fced772242a2","schema_version":"1.0","event_id":"sha256:2312934d22a2e9b86ec486424b5c1d8ce2f531600726bbb705b1fced772242a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD/bundle.json","state_url":"https://pith.science/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T23:24:26Z","links":{"resolver":"https://pith.science/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD","bundle":"https://pith.science/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD/bundle.json","state":"https://pith.science/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GCMZCEBNJSMV5U4YYR4Z3YOQOD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GCMZCEBNJSMV5U4YYR4Z3YOQOD","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ed57d26a503a13c02917d57a16fa89f0a094972b04911bb9b828dbde719c4549","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-12-25T20:17:31Z","title_canon_sha256":"b255aebc58b9cff96fac0ced246b5fe413e0f4177cc93d6573ccfc3847600d51"},"schema_version":"1.0","source":{"id":"1312.7015","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7015","created_at":"2026-05-18T00:56:47Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7015v2","created_at":"2026-05-18T00:56:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7015","created_at":"2026-05-18T00:56:47Z"},{"alias_kind":"pith_short_12","alias_value":"GCMZCEBNJSMV","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GCMZCEBNJSMV5U4Y","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GCMZCEBN","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:2312934d22a2e9b86ec486424b5c1d8ce2f531600726bbb705b1fced772242a2","target":"graph","created_at":"2026-05-18T00:56:47Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Electric field effect (EFE) controlled magnetoelectric transport in thin films of undoped and La-doped Sr$_{2}$IrO$_{4}$ (SIO) were investigated under the action of ionic liquid gating. Despite large carrier density modulation, the temperature dependent resistance measurements exhibit insulating behavior in chemically and EFE doped samples with the band filling up to 10\\%. The ambipolar transport across the Mott gap is demonstrated by EFE tuning of the activation energy. Further, we observe a crossover from a negative magnetoresistance (MR) at high temperatures to positive MR at low temperatur","authors_text":"C. R. Serrao, D. K. Efetov, D. Yi, J. Ravichandran, P. Kim, R. Ramesh, S.-W.Cheong, Y. S. Oh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-12-25T20:17:31Z","title":"Ambipolar Transport and Magneto-resistance Crossover in a Mott Insulator, Sr$_{2}$IrO$_{4}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7015","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:962abc0363a3a1122a7365dbb72d33036f4cd813690953e5739bef9e6797bdf4","target":"record","created_at":"2026-05-18T00:56:47Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ed57d26a503a13c02917d57a16fa89f0a094972b04911bb9b828dbde719c4549","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-12-25T20:17:31Z","title_canon_sha256":"b255aebc58b9cff96fac0ced246b5fe413e0f4177cc93d6573ccfc3847600d51"},"schema_version":"1.0","source":{"id":"1312.7015","kind":"arxiv","version":2}},"canonical_sha256":"309991102d4c995ed398c4799de1d070cf65bf2cb8ee11e61337ca7f3c9fc890","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"309991102d4c995ed398c4799de1d070cf65bf2cb8ee11e61337ca7f3c9fc890","first_computed_at":"2026-05-18T00:56:47.018536Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:47.018536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2hzI9U/bj8R7NEDxhpPW+n4hjwZNTST4V8Z0RZBinkJE5pmmY2WVBBqjESDJazoNHhIlmovCZExOoNBTQs5tCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:47.019195Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.7015","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:962abc0363a3a1122a7365dbb72d33036f4cd813690953e5739bef9e6797bdf4","sha256:2312934d22a2e9b86ec486424b5c1d8ce2f531600726bbb705b1fced772242a2"],"state_sha256":"bcdc8e4fa5f8a60d738641f91eb31311adb1e660f3d5a98c91ab62d78dec410b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nTwyE31v2Y7fNTcTUguwVQIfkToo+hVJLH3taBfG19tLKsT8J0RyvGrj7kmgN4evXhnPtBXlwHf0cJpNhEoGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:24:26.595118Z","bundle_sha256":"858ff3e5a1e65797df58bacc3a20eb3052693b14531554a52945339842d56685"}}